A revision of Tecoma Juss. (Bignoniaceae) in Bolivia by JRI Wood (Botanical Journal of the Linnean Society, 2008, 156, 143–172):
KEY TO TECOMA SPECIES IN BOLIVIA
1. Corolla yellow (sometimes with reddish veins), ventricose above a shortly cylindrical, strongly demarcated base, ±campanulate in form; anthers sparsely pilose ……2
1a. Corolla red, red and yellow, or orange (very rarely yellow), gradually widened from the base, ±cylindrical-tubular in form; anthers glabrous ……..3
2. Leaves simple; corolla completely glabrous externally ………..1. Tecoma beckii
2a. Leaves five- to nine-foliolate; corolla usually with a few hairs, at least in the sinuses of the lobes ………….2. Tecoma stans
3. Corolla regularly five-lobed, uniformly red or reddish-orange (very rarely yellow); anthers included; leaflets ovate to elliptic, serrate-dentate ……….4. Tecoma tenuiflora
KEY TO SUBSPECIS OF TECOMA FULVA
1. Leaves hirtellous; leaflets 11–21, broadly obovate, about as broad as long, mostly < 1 cm long.........a ssp. fulva
1a. Leaves glabrous or, if hirtellous, the terminal leaflet oblong, > 1.5 cm long, much longer than broad; leaflets 1–17 ………2
2. Leaf rhachis clearly winged; lateral leaflets obovate to oblanceolate, two to three times as long as broad; corolla regularly expanded from base, lacking a clearly differentiated basal tube, lobes < 7 mm long, the dorsal pair not united or united for < 2 mm; stamens at mouth of corolla, the filaments equal in length .........3
2a. Leaf rhachis unwinged or almost so; all leaflets oblong or oblong lanceolate, broadest near the centre or below, mostly three to five times as long as broad; corolla with a clearly differentiated basal tube, the lobes c. 10 mm long, the dorsal pair united for > 2 mm; two outer filaments longer than the inner pair, their anthers exserted …….5
3. Leaflets 13–17, coriaceous; the terminal leaflet only slightly larger than the laterals, obovate …………….b. ssp. arequipensis
3a. Leaflets 1–9(-11), thin in texture, the terminal leaflet much larger than the laterals, oblong ………………4
4. Leaflets 1–7 (i.e. some leaves simple); branchlets and leaves hirtellous ……………..c. ssp. tanaeciiflora
4a. Leaflets 3–9(-11), the leaves always divided into leaflets; branchlets and leaves glabrous or almost so …………….. d. ssp. guarume
5. Corolla 5–7 cm long; leaflets conspicuously serrate-dentate, teeth c. seven per centimetre …… e. ssp. altoandina
5a. Corolla 4.5–5.5 cm long; leaflets weakly toothed, teeth three to four per centimetre………………f. ssp. garrocha

Yellow Bells (T. stans), has compound leaves, whereas this one (T. castanifolia), has simple leaves and can have upto 3 foliate leaves (rarely).  In the Yellow Bells (T. stans), the clusters of flowers bend the branch and are commonly seen beautifully hanging down. In Chestnutleaf Trumpetbush (T. castanifolia), clusters of yellow bell-shaped flowers appear at the end of branches which spread outwards. The leaves have serrated margins; 

In Tecoma stans var. angustata Rehd. (syn: T. incisum (Rose & Standl. ex Woot. & Standl.) I. M. Johnston: leaflets narrow, incised-toothed.

Tecoma fulva has winged rachis whereas the Tecoma x smithii is wingless; 


Tecoma capensis (Thunb.) Lindl. (Images by (J.M.Garg – Id by Ajinkya Gadave) & Aarti Khale, (For more photos & complete details, click on the links))

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Tecoma castanifolia (D.Don) Melch. (Images by Mani Nair & Raman Arunachalam (For more photos & complete details, click on the links))

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(Images by Aarti Khale, (Siva Siva – Id by Aarti Khale) & (Devendra Bhardwaj – Id by Vijayadas D & Santhosh Kumar))

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(Images by Satish Phadke & Mala Bajaj (Id by Satish Phadke & Vijayadas (Inserted by J.M.Garg))

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Tecoma stans (L.) Juss. ex Kunth (Images by Raman Arunachalam) 

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Binomial Habit Notes References Distribution Common name English name
Tecoma
stans
(L.) Kunth
Shrub Plains,
Cultivated, Native of Tropical America
Flora of Tamil
Nadu, VOL. II, 1987
All districts Nagashenbagam,
Sornapatti
Yellow Bells

 

 

Botanical name Synonyms Family Common name























Tecoma capensis Tecomaria capensis, Bignonia capensis Bignoniaceae Cape Honeysuckle
Tecoma castanifolia Bignoniaceae Chestnutleaf Trumpetbush
Tecoma fulva Bignonia fulva Bignoniaceae Cahuato
Tecoma stans Bignoniaceae Yellow Bells
Tecoma stans var. angustata Bignoniaceae Yellow Trumpet Flower

 
 
Floriculture in India By Gurcharan Singh Randhawa, Amitabha Mukhopadhyay (1986)- Brief details-p.166/167-
Tecoma gaudichaudii DC.is a synonym of Tecoma castanifolia
 
Flora of Davanagere District, Karnataka, India By B. K. Manjunatha, V. Krishna, T. Pullaiah (2004)- Details-
 
 
Flora of Ranga Reddi District Andhra Pradesh, India By T. Pullaiah, M. Silar Mohammed (2000)- Details-

 
Antidiabetic Plants in India and Herbal Based Antidiabetic Research By T. Pullaiah, K. Chandrasekhar Naidu 92003)- Details-
 
Plant Taxonomy: past, present, and future edited by Rajni Gupta (2012)-
 
Tecoma ‎(Bignoniaceae) : 1 post by 1 author.

I have updated eFI (efloraofindia) page on Tecoma (Pl. click).

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of Indian species with source references it will be wonderful.

Any comments/ corrections are welcome.


 

1 page was already done by you


Pl. go through ‎‎Tecoma page (‎‎‎‎Bignoniaceae) with images of species in efloraofindia (mainly done by …).

If you find any mis-identification, pl. let us know.

If anybody can send images of other species of this genera (for incorporation in the website), it will be really nice. Also, if anybody is interested to take up the activity of inserting images on efloraofindia pages from efloraofindia posts, pl. let us know.


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